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  1. Member
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    Dec 2007
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    MCSA (270,290,291,284) Bsc Computing
    #1

    Default Ms Press 70-293 subnetting question

    Im working my way through the MS book and have just reached the subnetting section...
    And Ive noticed something I dont quite follow when it comes to subnetting..

    In one example (Chapter 2 - Page 32), it mentions the network 192.168.42.0 /24 and would happen if you changed the mask to a /27 (255.255.255.224)

    So far so good, I know from studying for 70-291 that a 27 mask will give you 8 subnets with 30 hosts each.

    But, MS claim that the first subnet would be 192.168.42.32, when I worked it out, I thought that the first subnet would be
    Subnet ID First Host Last Host Broadcast
    192.168.42.0 192.168.42.1 192.168.42.30 192.168.42.31

    I figured that 192.168.42.32 would be the second subnet. They seem to have done that in the examples too. Have I missed something fundamental with subnetting or is this an MS error?
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  3. Senior Member
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    Mar 2007
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    #2
    Which edition of the book are you using? Have you checked the errata?
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  4. Member
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    Dec 2007
    Location
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    MCSA (270,290,291,284) Bsc Computing
    #3
    Hmmm I'll have a check when I get in but Im going to presume its an early edition as I have spotted quite a few spelling errors and stuff so far. To be honest I think Im going to get rid anway. The book seems to pretty much skim through topics and is nowhere near as in depth as the ms press 70-291 book. Ive just got a copy of the syngress book so gonna use that from now on
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  5. Senior Member
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    #4
    Good plan
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